The last share said that the drilling machine under the high-speed rotation of the spindle, the spindle temperature will affect the processing accuracy, so the need to install the spindle oil cooler to prevent this situation. 

The spindle of Duyang CNC drilling and tapping machine chooses ceramic bearings, which can directly avoid this situation.

 The following Kunshan Duyang CNC to share with you the advantages of using ceramic bearings drilling machine. First, the advantages of ceramic bearings 

 1, because ceramics are almost not afraid of corrosion, ceramic rolling bearings are suitable for operation under harsh conditions covered with corrosive media. 

2, because the density of ceramic rolling ball is lower than steel, the weight is much lighter, so the centrifugal effect of the outer ring can be reduced by 40% when rotating, and then the service life is greatly extended. 

3. Ceramic is less affected by thermal expansion and contraction than steel, so when the bearing clearance is certain, the bearing can be allowed to work in an environment where the temperature difference is more drastic. 

4, because the elastic modulus of ceramics is higher than that of steel, it is not easy to deform when stressed, so it is conducive to improving the working speed and achieving higher accuracy. The ceramic bearing has the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, magnetoelectric insulation, oil-free self-lubrication, high speed and so on. It can be used in extremely harsh environment and special working conditions. two Comparison of ceramic bearing and metal bearing 1, the fatigue life of all ceramic bearings is 10-50 times longer than that of all steel bearings, and the life of mixed ceramic bearings will be about 3-5 times higher than that of all steel bearings; In terms of service life, ceramic bearings are much higher than metal bearings. 2, the friction coefficient of ceramic bearings is low, so the oil-lubricated ceramic bearings, in the case of lubricating oil thinning or lack, its lubrication capacity is still not lower than the traditional lubricants commonly used in steel bearings; 3, the steel of ceramic bearings is larger than that of metal bearings, the elastic modulus of ceramic materials is high, and the rigidity is 15-20% larger than that of ordinary steel bearings. 4. Compared with metal bearings, ceramic bearings are more resistant to wear and tear. Because of the different materials of their own, the corrosion resistance and wear resistance of ceramic bearings are more excellent than that of metal bearings.